configure: Fix for icotool version checking regex.
diff --git a/configure.ac b/configure.ac
index df70de6..006a325 100644
--- a/configure.ac
+++ b/configure.ac
@@ -296,8 +296,8 @@
icotool_version=`icotool --version | head -n1`
if test "x$icotool_version" != "x"
then
- icotool_version_major=`expr "$icotool_version" : '.* \([[0-9]]*\).[[0-9]]*'`
- icotool_version_minor=`expr "$icotool_version" : '.* [[0-9]]*.\([[0-9]]*\)'`
+ icotool_version_major=`expr "$icotool_version" : '.* \([[0-9]]*\)\.[[0-9]]*'`
+ icotool_version_minor=`expr "$icotool_version" : '.* [[0-9]]*\.\([[0-9]]*\)'`
if test "$icotool_version_major" -eq 0 -a "$icotool_version_minor" -lt 29
then
ICOTOOL=false